High hardness aluminum alloy hexagonal holder features double powerful magnets for 50% strong grips, securely holding screws and bits during drilling to minimize drops and enhances efficiency Standard 6.35mm hexagonal shank ensures generic compatibility with most drill / driver chucks, enabling quick bit changes for versatile applications from accuracy tasks to heavy duty projects Five bright color option ( red / yellow / blue / green /) combine practical functionality with individualized styles, ensuring easy tool identification in busy workspaces for electronics repair workshops, construction sites, and home garages where its demagnetizing surfaces prevents interferences during delicate component installations Designed for craft hobbyists, professional technicians, and industrial workers needing sturdy tools that endure rigorous daily operations, Manufacturer: ERRORY